Milk-cooler.



E. R. MGGLURE.

MILK COOLER.

APPLIGATION FILED AUG.19, 191,2.

Patented Feb. 3, 1914.

l HHIII Ilillb-IHHUHIIEI i i i l Specication of Letters Patent.

Patented Feb. 3,1914.

Application filed August 19, 1912. Serial No. 715,740.

To all whom it may concern Be it known that l, Encan R. llfcCLUaE, 'acitizen of the United States, residing at Los Angeles,` in the county ofLos Angeles and State of California, have invented a new and usefulImprovement in Milk Coolers, of which the following is a specification.

This invention relates particularly to devices for preparing milk fordomestic use, and its principal object is to provide a cooler to combinethe features of cooling and also adapted to have its function changed toa sterilizer.

It is also an o. ject to provide a cooler that may be cooled either bythe use of ice or fluid cooling solutions.

It is also an object to provide the cooling tubes of such a coolerprovided with spreaders which will compel the iiuid to Contact with thecooling surface in a film.

Itis a further object to provide means for readily cleansing the tubesfrom a point outside the cooling compartment.

In the drawings accompanying this speciiication Figure 1 is an elevationin section showing the ice chamber and the cooling chamber, a portion ofthe outer side walls being shown in elevation. Fig. 2 is au end view ofthe apparatus, a portion of the end Wall being broken away in threeplaces to clearly show the tubes and hopper in which the tubes empty.Fig. 3 is a plan view, partly in section, to clearly Ashow the housingaround thev hoppers. Fig. 4 is a detail perspective of a portion of oneof the cooling tubes showing the method of securing a spreader insidethe tube.

More specifically in the drawings like numerals indicate the same partsin the different views, 5 designating the side walls of thecompartments, and G the end walls, preferably built of metal with a heatnon-conductive lining, or of wood as shown in the drawing. The top ofthe casing 7 is provided with a hinged door 8 which provides an openinginto the ice chamber 9, this being separated from the main coolingchamber 10 by the perforated licor 11 shown as built of heavy Wirefabric.

Chamber 10 is below chamber 9 being provided with a removable bottom 12,with the short Walls 13 provided with flanges 14C which engage withsimilar anges 15 on the side and. end walls above described, beingsecurely held by the bolts 1S or other fastenings. This receptaclebottom contains within it the' agitator 17 shown as a rspiral screwmounted on the shaft 18, journaled in UMTED STATESPATENT. carica theshort walls 13, thle outer end of the shaft being provided with a pulley19 to be'driven by any suitable source of power when desired. Thisreceptacle bottom also supports the steam pipe 20 provided withperforations which admit steam to the chamber "1() when desired, thevalve 21 controllingF the source of supply from some suitable boiler. r

A drain cock 22 is also tapped into the bottoni 12 to provide means Aforwithdrawing`- Huids accumulated or introduced linto the chamber 10. Theoverflow pipe 23 is also provided, extending from the top of the chamberand leading out through the bottom 12, the valve 24 controlling thisoverllow pipe, the Valve being located referably just below the bottom12.

Auxi iary housings or closures are formed on the end walls lby acontinuation of the side walls 5 and closed by the tops 25 and thebottoms 26 and the" M doors 27, one of these housings being dupliy catedon each end wall to provide inclosuresv for thefhoppers 28.

Extending into the top 25 of the housing i 1 on oneside is a pipe 29leading from the reservoir 30 to convey iiuid to the hopper immediatelyunder the pipe and affording communication to the lower end of the tube31. This tube as clearly shown, is in clincd so that the fluid willentirely cover its entrance orifice before it makes its exit at itsother.ed,' these ends being mounted in the end walls 6 of the maincasing. From this exit orifice in the tube, the fluid drops to the firstho per thereunder communicating with the tube 32, this tube alsoextending across the chamber 10 and inclined in the reverse directionwhere it empties outside the end Wall 6 of the chamber into the nexthopper 28. A series of these tubes form a circuitous passage, and aplurality of them are shown mounted in thc same relative verf I whichadjoins the ammonia supply pipe 33 controlled by the valve 34. Thehoppers 28 are preferably formed of sheet metal as shown, each hopperhaving at its most dependent portion van aperture formed therein adaptedto be closed by the plugs 35, these plugs 35 being normally in positionto close the orifice andwithdrawn when it is'desired td clean theAstructure. lrVithin the tubes 31 arid 32 are preferably mounted thespreadl l (l ers 36 in concentric relation with the inner periphery ofthe tube, b the s accrs 37 these spreaders being pre erably ormed oiitubingr with the closed ends 38. The lowermost of the cooling tubes 32is provided with an exit trough 40 leadin the milk to any suitablecontainer outs e the casing and the housing. In the operation of thisdevice when it is desired to cool a fluid, as milk ice may be introducedinto the chamber an the supply) in reservoir 30 is allowed to How throuli y a suitable controlling means not siown until a desired temperatureis reached at the exit 40. If ice is not at hand, a brine solution ofcommon salt and water may be introduced in the chamber 10 and the brinekept in solution by means of the agitator 17. Ammonia coils 33 are alsoprovided so that this cooling medium may be allowed to enter the coilsand produce the coolinv etl'ect whenever needed. When it is desired touse the device as a sterilizer, water is introduced in the chamber 10,live steam injected therein through the pipe 20 resulting in apasteurization of the milk, or the steam alone may be used if desired.When it is desired to clean the device, the doors 2T may be removed andthe water directly in'ected into the upper ends of the cooling tu es,the plugs 35 are removed which permits the water to drop into the hoppernext below and be readil carried away. The s readers 36 may be uiltremovable so that tiiey can be readily withdrawn when it is desired toclean the structure. The parts supported by the bottom 12 are alsoeasily removed by dctachiug the bolts 1G. Suitable clips 42 are providedto hold the doors 27 securely in iosition.

What Iclaim is:

1. A milk cooler, com rising a receptacle adapted to contain a coo ingmedium, a plurality of inclined tubes supported therein and extendingacross the same and hoppcrs mounted external to the receptacle, formingcommunication between said tubes, the lower portions of the tubesextendino' to the lower portion of said ho pers, anV the tops of saidhoppers extcndinof above the level ot' the oppositely disposed-ends ofthe tubes to that communicating with said lower portion of the hop Jers.

2. A mil t cooler, comprising a casing havingl an upper and a lowercompartment, coin municatlng with one another, a series of incllnedtubes mounted in the walls of said lower compartment and extendingacross the lower compartment reversely inclined to the flow of theliquid therein, hoppcrs terminaT reservoirs in connection with saidinclined pi es provided with apertures, and removab e means forspreading the liquid circulating in said tube.

In witness that I claim the foregoing l have hereunto subscribed my namethis 12th day of August, 1912.

EDGAR R. MCCLURE.

Witnesses:

EDMUND A. STRAUSE, M. BA'rrnY.

Uopin o! this potent may be obtlined for ve cents each, by addressingthe Commissioner of Patente,

Washington, D. 0."

